Skip to main content

Batch#01 - 24 Dec - Day 15

Christmas Eve! Time to find out more about lettuce tip burn


Signs of tip burns (especially at the crown or youger leaves)



More signs of tip burn only on the GR. Interestingly, the other lettuces do not exhibit any similar signs. This may point to other causes, other than EC level, pH or even dew droplets. An important point to note is that GR leaves are much thinner and seemingly more fragile compared to the other lettuces in the system.

An internet search yielded this article. 

To summarize the key points of the article, it would seem that tip burn can be caused by calcium deficiency. However, for selected lettuce (iceberg), tip burn at the crown or young leaves, can still happen despite sufficient calcium supply. This is most likely caused by rapid growth which creates a condition that reduces the transpiration ability in the inner leaves. This lack of evapotranspiration is the main cause of tip burn in selected lettuce types.

 The only way to manage is to cultivate other types of lettuce apparently!

So it seems I just got to live with the issue. More important to note, is to keep vigilant and check that the tip burns or identical looking signs are not caused by other factors, such as pest infestation or moulds!

The traditional sequence from top to bottom.

CR:


GR:



RO:



BH:



EC980
- Still in good range.

pH6.7
- The trend of increasing pH remains consistent. Added 4 drops of pH down around 0800h. Reading at 1700h is 6.6. Added another 4 drops.

WT29
- Fairly consistent between 29 and 30C.






 



Labels:

Comments

Post a Comment

Popular posts from this blog

Batch 2 - Cycle 2 (30 days)

 Batch 2 - Cycle 2 (30 days) Report And so, 30 days in (After seeding, germination, and transplant) and the lettuces are growing well. No adverse signs of infection, or burnt tips (yet?). Fingers crossed, they stay healthy and strong! Generally, EC is kept to about 600. pH measurement is about neutral. Honestly, not measuring pH regularly right now. EC is measured about once every 2 days.   The challenge now is which lettuce is which? This is the result of transplanting any healthy-looking sprouts to the net pots. An alternative view, from the side. So time to make a little educated and experienced guess. Starting from the top and left, the label is 01, and moving to the right, it's 02, and so on. The bottom left is therefore 07, and followed through to 12. My guess is:  1 - Lettuce 211; 2 to 5: Butterhead; 6 - Lettuce 211; 7, 8 - Grand Rapids, 9 to 12: Lettuce 211;
Post a Comment
Read more

YESH! My Yashponics Kit has arrived

    The Eagle has Landed! And so here it is. Not exactly an eagle, but the Yashponic 4-tier black kit. After a short 4 days wait after placing the order for pre-existing stock, the box arrived yesterday, late evening.  Time to be Bob the Builder Decided to start on the hardware set up today, since I am unsure how long it will take me. As shared in the videos put up by helpful Yashponics owners, it takes around 2.5 hours. The assembly videos are helpful. They gave me a good idea of how to start and the overall concept of the built. The whole process made all that easier, thanks to the numbered parts. And yes the whole kit is up and ready.  Easy to set up? My Verdict... With the videos provided by Yash, the numbered parts, it's totally a breeze to get the whole kit up. Took my time to unbox the parts, lay them out (in other words, you need some space for all these), and put them together.  Only boo-boo along the way is that I forgot to rinse all the parts as ...
Post a Comment
Read more

Batch 2 - Transplant Cycle 2

Transplant Cycle 2 Transplanted an assortment of GL and L211 mix that is about 7 days old. These came from seeding that was done on 9 May. Leftover sprouts.  Tried to grow Chinese Kale via Kratky using the wicking method planter pots and two 20W E27 grow lights. A close up of the CK sprouts.
Post a Comment
Read more